18 of 18 Permanent Distributed Denial-of-Service Jobs in London

with hands-on technical expertise in building AWS cloud security capabilities in code and deploying infrastructure in code - Implementation experience with enterprise security solutions such as WAF, IPS, Anti-DDOS, and SIEM - Experience in supporting internal and external customers. You understand what it means to draw out critical customer needs and focus your knowledge and creativity to deliver practical outcomes More ❯

Access Management Robust CSOC services that include SIEM and Security Orchestration Cloud security and compliance SASE/CASB EDR/XDR KMS/HSM Solutions NFV Security Technologies, WAFs DDOS Containerisation and Cloud Native application security Security consultation Ransomware/Anti-Span/Malware prevention technologies Experience in Private & Public Cloud architectures for Security Knowledge of Network Architectures More ❯

of cybersecurity training, you will be a hands-on leader in securing the business against evolving threats. Key Responsibilities Manage and optimise enterprise-grade security tools: WAF, DDoS, email and web security gateways, SIEM, SOAR, EDR, MFA, SSO, IDS/IPS, PAM and more. Perform vulnerability assessments and penetration test remediation. Deliver Cyber Security Awareness Training across the More ❯

junior team members. Key Responsibilities Monitor, manage, and respond to threats via SIEM, SOAR, and EDR platforms Conduct vulnerability scans and support remediation and risk mitigation efforts Oversee WAF, DDoS, VPN, and perimeter firewalls Manage Email and Web Security Gateways Administer MFA, SSO, PAM, MDM/MAM, and Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS More ❯

junior team members. Key Responsibilities Monitor, manage, and respond to threats via SIEM, SOAR, and EDR platforms Conduct vulnerability scans and support remediation and risk mitigation efforts Oversee WAF, DDoS, VPN, and perimeter firewalls Manage Email and Web Security Gateways Administer MFA, SSO, PAM, MDM/MAM, and Conditional Access systems Maintain security certificates, encryption keys, and IDS/IPS More ❯

architectures for all-in and/or hybrid deployments - Hands-on technical expertise in building security capabilities in code and deploying infrastructure in code such as WAF, Firewall, Anti-DDOS, and SIEM - 3+ Years hands-on technical expertise in security architecture, technology automation, implementation, integration, and/or deployment - Experience running big scale security engagements with customers and ability to More ❯

Technologies Network: Cisco Nexus Switches Cisco ACI Network Cisco ISR Router Cisco Wireless Access Points Cisco Wireless LAN Controller Cisco DNA Centre Network Security : Forescout F5 load balancer Arbor DDOS Perimeter Security : Palo Alto Firewall Checkpoint Firewall Technical Certifications (Good to have) ITIL v3 or v4 Foundation Palo Alo or Check Point Firewall Certification PCSA, CCSA CCNP certification CCNA wireless More ❯

Technologies Network: Cisco Nexus Switches Cisco ACI Network Cisco ISR Router Cisco Wireless Access Points Cisco Wireless LAN Controller Cisco DNA Centre Network Security : Forescout F5 load balancer Arbor DDOS Perimeter Security : Palo Alto Firewall Checkpoint Firewall Technical Certifications (Good to have) ITIL v3 or v4 Foundation Palo Alo or Check Point Firewall Certification PCSA, CCSA CCNP certification CCNA wireless More ❯

drive the automation of manual or repetitive network infrastructure tasks to reduce overheads and standardise practises Manage and implement security control measures such as access control lists, DDoS protection etc Management of Azure, AWS, and Google Computer Cloud Virtual Networks Configure and support WAN technologies, including OSPF/IS-IS, BGP, GRE, IPSEC, VPNs, QOS, Multicasting More ❯

non-technical audiences - Hands-on technical expertise in building and deploying security solutions, capabilities and infrastructure. - Implementation experience with enterprise security solutions such as SSO, Federation, WAF, IPS, Anti-DDOS, and SIEM and understanding architectural implications of meeting industry standards such as PCI DSS, ISO 27001, GDPR, and NIST frameworks and relevant regulatory frameworks such as Thailand's More ❯

analytical and problem solving skills Very strong written and verbal communications skills. In-depth knowledge of: Advanced Persistent Threats, Third Party Risks/Threats, Cybercrime, Hacktivism, Distributed Denial of Service attacks, Fraud, Malware, Mobile Threats We offer: By joining Citi London, you will not only be part of More ❯

web technologies, including HTML, CSS , and web protocols like SSL/TLS . Good understanding of core concepts such as DNS, video on demand (VOD), DDoS protection, and load balancing . Confident using tools like curl, traceroute, MTR, and other diagnostics to troubleshoot issues. Awareness of security best practices and how they apply to More ❯

Equivalent market experience will be considered. Good knowledge of key global IP Networks, IP Transit, Service Providers, Ethernet service offerings, CDN, networking and DDoS services. Have a good understanding of the respective strengths and weaknesses of such Providers globally. Work Experience Required: Good knowledge of all Microsoft Office More ❯

Join a focused 3-person IT Security team, reporting to the IT Security Officer, to implement and maintain robust security across their infrastructure. Key responsibilities include managing WAF/DDoS, security gateways, SIEM/SOAR/EDR, firewalls, MFA/SSO, MDM/MAM, vulnerability scans, and incident response. Key Responsibilities: Manage WAF/DDoS, web/email security gateways … CrowdStrike EDR, Mimecast, Duo, Okta, Rapid7 IVM/IDR, Palo Alto Firewalls, InTune, and Entra ID/Azure AD/Group Policy. Experience: Familiarity with Imperva WAF/DDoS, Menlo, Cisco security, KnowBe4, Digicert, patching tools, web application scanners, and Kali Linux, AI, Machine Learning Candidate Profile: Relevant security certifications (CISM, MS Security, OSCP preferred). Financial services/ More ❯

Join a focused 3-person IT Security team, reporting to the IT Security Officer, to implement and maintain robust security across their infrastructure. Key responsibilities include managing WAF/DDoS, security gateways, SIEM/SOAR/EDR, firewalls, MFA/SSO, MDM/MAM, vulnerability scans, and incident response. Key Responsibilities: Manage WAF/DDoS, web/email security gateways … CrowdStrike EDR, Mimecast, Duo, Okta, Rapid7 IVM/IDR, Palo Alto Firewalls, InTune, and Entra ID/Azure AD/Group Policy. Desired Experience: Familiarity with Imperva WAF/DDoS, Menlo, Cisco security, KnowBe4, Digicert, patching tools, web application scanners, and Kali Linux. Candidate Profile: Relevant security certifications (CISM, MS Security, OSCP preferred). Financial services/SOC/pentesting More ❯

ingress and egress points, including creating and maintaining an edge network with a Web Application Firewall (WAF), Distributed Denial of Service (DDoS) protection, and a Content Delivery Network (CDN). Access Control: Establish an access control baseline focusing on the principle of least privilege and segregation of duties. More ❯

DoH/T/Q), and nameserver implementations such as those by ISC, NLNetLabs, and OpenXchange. DNS Security Knowledge: Deep understanding of DNS security practices, including DNSSEC, DDoS mitigation, and related technologies Programming experience with more than one programming language, typically C, C++, C#, Scala, Java, Python Networking Fundamentals: Strong knowledge of networking principles, including IP … they relate to DNS Knowledge of using BGP to deliver DNS services via IPAnycast Comfortable working with highly secure environments Hands-on experience with large scale distributed systems, web applications and cloud platforms What We Offer Early Finish Friday - Working week of 34 hours with full-time pay. (Finish at midday on Friday More ❯

team to ensure compliance with security standards and best practices, acting as a key technical leader in safeguarding sensitive data and systems. Key Responsibilities/Duties Manage WAF and DDoS systems Manage the Web Security Gateway Manage the Email Security Gateway Manage the SIEM, SOAR, Identity Protection, EDR, and respond to alerts and threats Carry out vulnerability scans, identify risks … or CrowdStrike Next Gen SIEM Palo Alto Firewalls and Panorama InTune and Conditional Access Experience with the following technologies is advantageous; understanding the principles is required: Imperva WAF and DDoS Menlo Web Security Gateway KnowBe4 Digicert Certificates and Microsoft Certificate Services Ivanti or Automox patching AppCheck or Tenable WAS Desired Education: CISM, MS SC100, 200, 900, OSCP or other penetration More ❯